Uncoupling mechanism for central-buffer claw-couplings.



L. SCHEB, Sn. & L. SGHEIB, JR. UNCOUPLING MBGHANSM FOR CENTRAL B UFPER CLAW GDUPLINGS.

APPLIGATION FILED NOV,14,1907.

l l l l 1 ll 9 'UNITED sTATEs vPALEE NT oEEioE.

LUDWIG scHElasE., AND LUDWIG scHEiB, JE., or KAisEEsLAUTERN, GERMANY. UNcoUrLmc. MEcHAmsM ron waaraan-BUFFER CLAWpOUPLrNcs.

No. 901,560. Specification of. Letters Patent. Patented Oct. 20, 1908.

I Application filed. November 14, 1907. Serial No. 402,191.

.To all whom it may concern: l pin and its retention at the rear end of its slot Be it known that we, LUDWIG SGHEIB, Sr., is eilected by the improved uncoupling mechandLUDWIG ScHEiB, Jr., subjects of His anism. *To this end we provide an uncoup- Majesty the Emperor of Germany, residing at ling lever g pivoted at g', which is fitted with Kaiserslautern, Germany, engineers, have an arm rovided with an inclined cam sur- 60 invented certain new and useful Improveface r wiiose lowest oint is close to the rep I ments 'in Uncouplihg Mechanism for Centralleasing pin c. By p acing the lever g in the .Buffer Claw-Couplings; and we do hereby deposition shown in dotted lines in Fig. 2, the clare the following to be a full, clear, and eX- cam surface r moves the releasing pin c backact descri tion of the invention, such as will wards, together with the locking cap b, from 65 enable others skilled in the art to which it the position of Fig. 2 to that of Fig. 4, thus appertains to make and use-the same. j unlocking the parts. The movement ofthe his invention relates to uncoupling mechlever g is limited by suitable stops and is anism for central buffer claw couplings such locked when the claw hook is open.

as are described-in `our application for U. S. The lever g is operated by-means of a lock- 70. atent filed the 27 September 1907 Serial ing handle s moving in a slotted guide plate t lo. 394850, said mechanism acting on the and having a curved cranked end s which locking capo therein described, to release the passes through a hole in the free end of same from the tail of the claw hook. lever g. When the claw hook E of the coup- '29 The invention renders springs unnecessary ling is in its locked position it is not neces- 75 for the uncoupling mechanism whose locln'ng sary that the lever g should be locked since parts can be turned upon each other without the spring h pushes the locking cap b towards f injury to the movable parts and without inthe coupling claw hook and so prevents acciterfering with the safety of the coupling. dental disengagement. When however the 2.5 In order that the invention may be clearly coupling is unlocked, as shown in Fig. 4, 'it is `so understood and readily carried into effect we useful to lock the lever g definitely. in its posiwill now describe the same fully as applied to tion so as to obviate any movement by reathe central buffer claw coupling above nienson of the shocks experienced during shuntltioned, having reference lto the accompany- .ing of the wagons. The position of the lever 30 ing drawings 1n which gat Auncoupling is shown in dotted lines in 85 45 plvoted on a pin c which may be moved bac Figure 1 is a vertical section,rand Fig. 2 a Fig. 2 and in or'der to lock the same in that cross section of the combined arrangement; position the handle s is lifted in its slotted Fig. 3 is a horizontal section corresponding to guide plate t into the round hole or enlarge- Fig. 1 showing the coupling in the `locked oment t thereof when it is turned axially for i sitlon; Figi. 4 is a similar view to Fig. 3 ut 90 and dropped back into the slot. By so 9o I showing t parts uhlocked, and F igs. 5 and turning the handle sits curved cranked end si, 6 are details. l A 4 enters a second hole in the lever Q, as shown Similar letters refer to like parts inall the in Fig. 6, and the latter is thereby prevented figures, and those parts which also appear in from accidental movement either in one or the drawings to our said earlier application the other direction by reason ofthe weight of 95 bear the same reference letters as they do in handle s now rigid with the lever g. To prethose drawings. vent the handle s from turning' back on its Referring to the drawing a designates'a axis and so unlocking lever g accidentally, it hollow coupling head, and b a locking ca is advisable to have that portion of the hanl; dle which moves in the slotted guide plate t 100 Vand forth in a suitable slot formed in the head of square section. a. The locking cap is ivotally connected to Movements of the coupllng parts during a guide rod g encircle by a helical spring 7L, shunting or from other causes during service Suitably ivoted to the coupling head a is a thus leave the uncoupling mechanism 'un- 5o claw hool) E having a tail piece e which is ai'lected even if the distance be altered bev105 ada ted to be enga ed by the locking cap b. tween the coupling, or rather between the or uncouplin t e parts in Figs. l land 3 pivot g of lever g, and the guide plate t of lts so as to assume t e position indicated in Fig. locking h andle, lnasmuch as the latter can 4, it is necessary to displace the releasing pin readily slide longitudinally 1n the slot of said c towards the left. The displacement of said guide plate. 11(

What we claim and desire to secure by Leti on the handle being turned axially, passing ters Patent of the United States iszthrough the other hole in the lever and thus In a central buffer claw coupling, the cornlocking the saine against accidental move- 15 bination with e locking ca of a projection ment, substantially as set forth.

carried thereby, a ivoted c aw hook designed In testimony whereof We have hereunto set to be engaged by t 1e locking cap, an uncoupour hands in the presence of two Witnesses.

lin r device comprising a pivoted lever proviclaed with a cam surface adapted to engage Jst' said projection, said lever having two holes J in its free end, and a locking handle having a Witnesses:

curved crank passing through one of said HEINRICH SCHAFFER,

holes in the pivoted lever, said curved crank, LUDWlG OMELL. 

